Grundig 46 VLE 8270 BL, Руководство по обслуживанию

Страница: 54 / 79

GR
UNDIG
Ser
vice
Chassis TK
2 - 16
Chassisplatte / Chassis Board – DVB-S
3V3
3V3
3V3
3V3
2V5A
2V5A
VDD_1V0
3V3
VDD_1V0
VDD_1V0
VDD_1V0
VDD_1V0
2V5A
VDD_1V0
VDD_1V0
3V3
3V3
3V3
3V3RF1
3V3RF1
3V3RF1
3V3RF1
3V3RF1
3V3RF1
3V3RF1
VCC3V3_S2
3V3RF1
VCC3V3_S2
VCC1V05
VCC3V3
VCC3V3
3V3
VDD_1V0
VDD_1V0
VCC3V3_S2
+5V_USB
VCC3V3
VCC5V3_FE
SCLT_1
SDAT_1
VDD_1V0
DVBT2_RST
SCL_S2
SDA_S2
VDD_1V0
QM_1
QP_1
IP_1
IM_1
C430
1u
C490
4.7pF
C448
1u
R366 100R
C444
10n
C435
10uF 6V3
C428
100n
C437
100n
C429
100n
C433
1n
C440
10n
R380
1K
C463
NC/47PF
C451
100n
C445
100n
C442
10n
C441
100n
C449
100n
C452
10n
C454
10n
C431
1n
C446
10n
C489
10n
C399
10n
C443
100n
C432
1n
R3
87
12
0K
C466
100n
R368 100R
C439
100n
EXPOSED PAD
VDDA1V0
2
VDDA1V0
3
GNDA
4
VDDA2V5
5
GNDA
6
QP
7
QN
8
VDDA2V5
9
GNDA
10
IN
11
IP
12
VDDA2V5
13
GNDA
14
VDD1V0
15
AGCRF
16
VDD1V0
17
SDAT
18
SCLT
19
DISEQCOUT
20
VDD3V3
21
VDD1V0
22
TDI
23
TDO
24
VDD1V0
25
Slu
g
129
TCK
26
TRSTN
27
VDD1V0
28
TMS
29
GPIO12
30
VDD1V0
31
GPIO11
32
VDD1V0
33
GP
IO
10
34
GPI
O9
35
VDD1V0
36
GPI
O8
37
VDD3V3
38
VDD1V0
39
COMP
0
40
COMP
1
41
VDD1V0
42
GPI
O7
43
GPI
O6
44
VDD1V0
45
GPI
O5
46
GP
IO
4
47
VDD1V0
48
GP
IO
3
49
GPI
O2
50
VDD1V0
51
VS
52
VDD1V0
53
VDD3V3
54
GPI
O1
3
55
CS
1
56
VDD1V0
57
ST
DBY
58
DI
RC
LK
59
CS
0
60
VDD1V0
61
RESE
TB
62
D0
63
D1
64
VDD3V3
96
N/C
95
N/C
94
VDD1V0
93
VDD3V3
92
N/C
91
N/C
90
N/C
89
VDD1V0
88
N/C
87
N/C
86
VDD1V0
85
N/C
84
N/C
83
N/C
82
VDD1V0
81
VDD3V3
80
ERROR
79
DPN
78
VDD1V0
77
VDD3V3
76
STROUT
75
CLKOUT
74
D7
73
VDD1V0
72
D6
71
D5
70
VDD1V0
69
D4
68
D3
67
VDD1V0
66
D2
65
DI
SEQCI
N
128
VDDA2V5
12
7
DI
SEQCI
N2/F
SK
RX_I
N
126
GNDA
125
XT
AL
O
12
4
VDDA2V5
123
XT
AL
I
122
GNDA
12
1
N/C
120
N/C
11
9
VDDA2V5
11
8
GNDA
117
N/C
11
6
N/C
115
VDDA2V5
114
GNDA
11
3
VDD1V0
112
N/C
111
VDD1V0
11
0
N/C
109
N/C
10
8
DI
SEQCOUT
2/
FS
KT
X_OU
T
10
7
VDD3V3
106
VDD1V0
10
5
CL
KI
10
4
CL
KI
2
103
VDD1V0
10
2
GP
IO
1
101
CL
KO
UT
27
100
VDD1V0
99
SDA
98
SC
L
97
GNDA
1
IC305
STV0903
C434
1n
C461
NC/47PF
C453
100n
C447
100n
C450
10n
C438
10n
C436
10n
DVBT2_RST
AGND Cut out area
L321
FB
R385
100
TP24
7531 8642
R381
47X4
7531 8642
R383
47X4
R384
47X4
7531 8642
R364 4,7k
R365 4,7k
R378
4,7k
R379
4,7k
TP22
TP23
TP26
AGC_1
LNB_RF1
XTAL_D
AGC1_RF
C465
10p
R373 100R
C460
100n
R374 100R
C491
10n
C477
10p
R377 100R
1
2
3
4
5
J301
COAX_F
C488
100n
C458
12p
XtalCMD
1
AGC
2
GNDIna
3
RFin
4
RFgnd
5
VCCIna
6
RFout
7
VCCIt
8
GNDI
t
9
GNDmix
10
SC
L
12
SDA
13
VCCdig
14
GNDdig
15
AS
16
VCCmix
11
NC
24
NC
23
VCCbb
22
Qp
21
Qn
20
In
19
Ip
18
GNDbb
17
Xtalou
t
32
Xtalin
n
31
Xtalin
30
GNDsy
n
29
VCCs
yn
28
VCCvco
27
GNDvco
26
GNDvco
25
GNDEx
33
IC306
STV6110A
C478
10p
C459
12p
C486
100p
C479
10p
C462
100n
C483
10p
C473
100n
R363 1K
C482
10p
C492
100p
R375 100R
C480
10p
C471
27pF
C481
10p
C485
100n
C467
100n
R370
0R
C476
10p
C487
100n
C457 100p
C484
1n
75ohm Microtrip line
C493
22UF/6.3V
R367 2.2R
C464
22UF/6.3V
2
4
1 3
T301
BFG425W
R376
10K
R372
1.5K
R369
47R
0.2mm x 20m
m
C456
10nF
C455
1uF
C469
4.7pF
NO mid la
ye
r
C470
NC/1p
TP25
L324
PBY160808T-301Y-S
L322
SBY100505T-102Y-N
C475
2.2pF
TS-MISYNC
TS-MIVALID
TS-MICLK
TS-MDI1
TS-MDI2
TS-MDI3
TS-MDI4
TS-MDI5
TS-MDI6
TS-MDI7
TS-MDI0
L323
27nH
L320
FB/60R/2A
5
3 4
T300B
2
6 1
T300A
DMN2004DWK
I2C-SDA
I2C-SCL
DISEQC_OUT DISEQC_OUT
I2C-SDA
I2C-SCL
SCL_S2
SDA_S2
xxD0
xxC0
1 3
2 4
X303
16MHz
LNB_RF1
C304
100pF
C468
1u
GND
max 120mA
Pd=100mW
Vout
1
GND
2
CE
3
Vin
4
5
IC300
XC6221A252GR-G
L408
SBY1005
R301
470R
VCC3V3_S2
R300
2.7k 1%
R303
1K 1%
C310
1n
C308
10u/6.3V X7R
IN
1
IN
2
PG
3
VCC
4
EN
5
GND
6
SS
7
FB
8
OUT
9
OUT
10
PA
D
IC307
AP7173
C309
1uF 10V
R302
10k
R305
NC
2mS delay
max 360mA
PG2
Option
L300
FB/60R/2A
C305
470uF
16V
C306
1n
C307
1n
C313
1n
L301
FB/60R/2A
L302
FB/60R/2A
LNB_RF1
R645
100R
C657
47n
R644
1.5k
C660
100n
C653
220n 25V
L613
NR6045T220M
C655
470nF
25V
C659
10uF 26V
VCC12V
Read :0x15
D607
BAT54C
R653 100
R651 100
C666
220nF 16V
C663
220nF
16V
LX
4
VCC-L
18
VOTX
22
ISEL
28
EXTM
13
DSQIN
12
ADDR
10
SCL
9
SDA
6
BYP
15
Vup
27
VCC
19
A-GN
D
20
VORX
21
PDC
11
TTX
14
P-
GN
D
5
RS
V
29
NC
1
NC
2
NC
3
NC
7
NC
8
NC
16
NC
17
NC
23
NC
24
NC
25
NC
26
NC
31
NC
32
NC
33
IC612
LNBH23L
+
C679
100uF 35V
+
C680
100uF 35V
R649
0R
TP86
D608
PMEG4010EH
D606
PMEG4010EH
DISEQC_OUT
L614
120R/100MHz
SDA_S2
SCL_S2
DISEQC_OUT
SCL_S2
SDA_S2
xx14
LNB_RF1
R655
18K
R668
0R
20
19
17 18
25
12
11
21
22
23
24
9
CE VIN
VSS
VOUT
R1
R2
Error
Amp
-
+
Voltage
Reference
Current
Limit
each
circuit
ON/OFF
Control
CE CE/
XC6221A
LNBH23
ADDR
A-GND
DSQIN
Vup
VoRX
VoTX
LX
Rsense
VSEL TTX
VSEL
EXTM
P-GND
Byp Vcc Vcc- ISEL TTX
DSQOUT
DETIN
22KHz Tone
Amp. Diagn.
22KHz Tone
Freq. Detector
CTRLV
SDA SCL ADDR
A-GND
I²C Diagnostics
I²C interface
DSQIN
Vup
VoRX
VoTX
LX
22KHz
Oscill.
PW
M Controller
Rsense
EN
VSEL
Linear Post-reg
+Modulator
+Protections
+Diagnostics
ITEST
TTX
EN
VSEL
VOUT Control
EXTM
P-GND
Preregulator
+U.V.lockout
+P.ON reset
Byp Vcc Vcc- Byp Vcc Vcc- L ISEL TTX
TEN
DSQOUT
DETIN
22KHz Tone
Amp. Diagn.
22KHz Tone
Freq. Detector
TTX STV0903
AGCRF
[IN, IP]
[QN, QP]
XTALI
XTALO
SCL, SDA
SDAT, SCLT
DISEQCIN
DISEQCOUT
FSKRX_IN
TAP
GPIO[13:1]
D[7:0]
CLKOUT
STROUT
DPN
ERROR
Dual
8-bit ADC
Slave I
2
C
manager
DiSEqC
TM
2.0
manager
FSK manager
GPIO
switch matrix
JTAG
boundary
scan
Clock generation
ASIC controller
power
managementand
Multi-standard demodulator
IO and
RF AGC
Multi roll-off
nyquist and
interpolation
filters
DVBS2
pilots
processor
and framing
Echo
concealment
equalizer
Demapper
Carrier
recovery
loop
Timing
recovery
loop
CNR
estimator
Lock indicator and
monitoring
DVBS2 FEC Legacy FEC
Viterbi decoder
Inner de-interleaver
Reed-solomon decoder
Energy descrambler
LDPC decoder
BCH decoder
DVBS2 de-framing
CRC checker
Transport
stream
manager
FSKRX_OUT
FIFO Line 1
STV6110A
PLL, dividers
Amplifier
RF_IN
IP
I
2
C bus interface
IN
QP
QN
AGC
RF_OUT
SCL
XTAL_IN
SDA
DC offset compensation
XTAL_OUT
9
Switch on (trigger: VCC12V)
!
@
& *
( )
¡
™
£
≤
∞